$OpenBSD: patch-net_dns_address_sorter_posix_cc,v 1.4 2016/07/31 13:11:44 robert Exp $
--- net/dns/address_sorter_posix.cc.orig.port	Wed Jul 20 21:03:27 2016
+++ net/dns/address_sorter_posix.cc	Thu Jul 21 10:25:30 2016
@@ -14,6 +14,7 @@
 #include <ifaddrs.h>
 #include <net/if.h>
 #include <netinet/in_var.h>
+#include <netinet6/in6_var.h>
 #include <string.h>
 #include <sys/ioctl.h>
 #endif
